Alert archive / Kansas / Flood Watches in 2008

Flood Watch 4, NWS Topeka, KS

April 17, 20086 counties in Kansas

NWS Topeka, KS issued this flood watch at Apr 17, 2008, 4:07 AM CDT for 6 counties in Kansas. It took effect at Apr 17, 2008, 7:00 PM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 17, 2008, 4:07 AM CDT (09:07 UTC)
In effect from
Apr 17, 2008, 7:00 PM CDT
Expired
Apr 17, 2008, 2:09 PM CDT
In force
Issued by
NWS Topeka, KS

Counties Brown County, KS, Jackson County, KS, Jefferson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS

The radar

The Topeka radar (KTWX), 69 km from the middle of the area, began a volume at 09:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 9.1 hours before the alert went out and 68 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2008-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2008-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
6 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1738 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Topeka, KS wrote its last area forecast discussion before this flood watch went out at Apr 17, 3:45 AM CDT, 22 minutes earlier.

Area forecast discussion, Apr 17, 3:45 AM CDT, 22 minutes before
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Hazardous weather outlook, Apr 16, 3:54 PM CDT, 12 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TOPEKA KS
354 PM CDT WED APR 16 2008

KSZ008>012-020>024-026-034>040-054>056-058-059-172100-
REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY-
POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS-
WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON-
354 PM CDT WED APR 16 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH
CENTRAL AND NORTHEAST KANSAS.

.DAY ONE...TONIGHT

THUNDERSTORMS ARE LIKELY ACROSS NORTH CENTRAL...NORTHEAST AND EAST
CENTRAL KANSAS DURING THE LATE EVENING AND OVERNIGHT HOURS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS CHANCES CONTINUE ACROSS THE AREA THURSDAY AND
THURSDAY EVENING...AND IN NORTHEAST AND EAST CENTRAL KANSAS
THURSDAY NIGHT. SOME LOCATIONS COULD RECEIVE HEAVY AMOUNTS OF
RAINFALL BY THURSDAY NIGHT.

THE CHANCE OF THUNDERSTORMS RETURNS TO MUCH OF THE AREA FROM MONDAY
THROUGH TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD NOT BE NEEDED TONIGHT.

In the hours before

Special weather statement, Apr 17, 1:34 AM CDT, 2 hours 33 minutes before
SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE TOPEKA KS
134 AM CDT THU APR 17 2008

KSZ034-170700-
OTTAWA-
134 AM CDT THU APR 17 2008

THROUGH 200 AM CDT...A STRONG THUNDERSTORM WILL MOVE NORTHEAST AT 35
MPH ACROSS PORTIONS OF OTTAWA COUNTY. NATIONAL WEATHER SERVICE
DOPPLER RADAR INDICATED THIS STORM IS CAPABLE OF PRODUCING NICKEL
SIZE HAIL...STRONG WINDS OF 40 TO 50 MPH AND HEAVY RAIN. SOME
LOCATIONS THAT COULD BE AFFECTED INCLUDE TESCOTT...ADA...CULVER...
WELLS...NILES...MINNEAPOLIS AND BENNINGTON.

A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT.  STAY TUNED TO NOAA
WEATHER RADIO OR OTHER MEDIA OUTLETS IN CASE A WARNING IS ISSUED.

CAVANAUGH
Special weather statement, Apr 17, 2:03 AM CDT, 2 hours 4 minutes before
SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE TOPEKA KS
203 AM CDT THU APR 17 2008

KSZ020-034-170730-
CLOUD-OTTAWA-
203 AM CDT THU APR 17 2008

THROUGH 230 AM CDT...A STRONG THUNDERSTORM WILL MOVE NORTHEAST AT 40
MPH ACROSS PORTIONS OF CLOUD AND OTTAWA COUNTIES. NATIONAL WEATHER
SERVICE DOPPLER RADAR INDICATED THIS STORM IS CAPABLE OF PRODUCING
NICKEL SIZE HAIL...STRONG WINDS OF 40 TO 50 MPH AND HEAVY RAIN. SOME
LOCATIONS THAT COULD BE AFFECTED INCLUDE
MINNEAPOLIS...DELPHOS...GLASCO...WELLS...MILTONVALE AND AURORA.

A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT. STAY ALERT TO THE
WEATHER IN CASE A WARNING IS ISSUED.

CAVANAUGH
Special weather statement, Apr 17, 2:47 AM CDT, 1 hour 20 minutes before
SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE TOPEKA KS
247 AM CDT THU APR 17 2008

KSZ008-009-020-021-170815-
CLAY-CLOUD-REPUBLIC-WASHINGTON-
247 AM CDT THU APR 17 2008

THROUGH 315 AM CDT...A STRONG THUNDERSTORM WILL MOVE NORTHEAST AT 40
MPH ACROSS SOUTHEASTERN REPUBLIC...SOUTHERN WASHINGTON...EASTERN
CLOUD AND NORTHERN CLAY COUNTIES. NATIONAL WEATHER SERVICE DOPPLER
RADAR INDICATED THIS STORM IS CAPABLE OF PRODUCING STRONG WINDS OF
40 TO 50 MPH AND HEAVY RAIN. SOME LOCATIONS THAT COULD BE AFFECTED
INCLUDE CLAY
CENTER...CLYDE...MORGANVILLE...VINING...CLIFTON...PALMER...MORROWVILL
E AND LINN.

STAY ALERT TO THE WEATHER IN CASE A WARNING IS ISSUED.

CAVANAUGH
Local storm report, Apr 17, 3:37 AM CDT, 30 minutes before
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Special weather statement, Apr 17, 3:59 AM CDT, 8 minutes before
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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 2:53 AM CDTSevere Thunderstorm WarningTOPDickinson, Ottawa67 min
Apr 17, 3:46 PM CDTSevere Thunderstorm WarningTOPDouglas, Jefferson29 min
Apr 17, 3:54 PM CDTSevere Thunderstorm WarningTOPFranklin51 min
Apr 17, 4:05 PM CDTSevere Thunderstorm WarningTOPDouglas25 min

Nearby

Flood Watches in Kansas, 2008Every flood watch in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.